Pipe-expanding machine.



J. I. PILSTON.

PIPE EXPANDING MACHINE.

APPLICATION FILED OCT- 31, 1913. 1 1 O8, 6 1 8. Patented Aug. 25, 1914.

WITHE'EIDES IHVEN TOR N. 3) SMW ATTORNEY THE NORRIS PETERS CO., PHOTO-L/THQ, WASHINGTON, D C' J. I. PILSTON.

PIPE EXPANDING MACHINE.

APPLICATION FILED OUT. 31, 1913.

1,1 08,6 1 8. Patented Aug. 25, 1914 3 SHEETS-SHEET 2.

WITNESSES IHVEHTOFL )Q Yg QR W I ATTo HEY "HE NORRIS PETERS C0,, FHOTO-LITHQ, WASHINGTON. D. C.

J. I. PILSTON.

PIPE EXPANDING MACHINE.

APPLIGATION FILED 00131, 1913.

Patented Au 25, 1914.

3 SHEETSSHEET 3.

IHVEHTOR WITHES5ET) COMM- ali /mf ATTORNEY THE NORRIS PETERS CO., PHOTO-LITHO WASHINGTON, D, C?

driving the pipe into the annular groove of the flange. However, the hammer prefer ably has a V-shaped groove on the end of the striking member to do the heading of the pipe intothe flange. In my previous appli such as shown in Figs. 5 and 7, which has a nipple intended. to be set horizontally and a flange set at an angle of approximately forty-five degrees. This flange is boltable to the bar member of the T casting which forms the angular holder. It may be bolt ed at a plurality of places along this portion of the angular holder so as to bring the passageway w in registry with any one of the tap holes 9. Tn the form shown, (Fig.

5) any one. of the'four positions may be occupied by the angular bracket. In the position shown in Fig. 5 thebracket and holder are bolted together to get the greatest radial adjustment of the hammer. By occupying the successive relativepositions the radial adjustment of the hammer is at three different times reduced. The hammer is disposed at approximately one hundred thirty-five degrees with respect to the supply pipe w.

The supply pipe 00 tln'eads into the threaded end of the bracket. The supply pipe is rotatable in the cross head 7 and at its 0p- ;posite end is provided with a hand wheel 2 by which it may be turned thereby turning the hammer while it is working. A flexible conduit, not shown, may be used to supply compressed air or the operating fluid. The cross head 3 is slidable on the guide rods 1, 1. and links 2 connect the cross head with an arm 8 that is fast. to the shaft 4; which is jonrnaled in the saddle 5. This saddle 5 is fastened to the top of the base 0 and serves also as a journal for the rotatable supply pipe ac. The segment 6 is also fast to the shaft l while the lever 'Z is'loose upon the shaft, but this may be bolted to the segment 6 at any one of several perforations 8 along the outer edge of the segment. A stationary segment 9-is fastened to the saddle 5 and pins 10 may be placed in any of the perforations in this stationary segment to act as stops to'limit and determine'the arc of swing of the lever 7. The supply pipe 00 has a collar 11 that abuts against the cross-head so that movement of the slide moves the hammer. The hammer is moved back and forth by operating the lever 7 with one hand, while the hammer is revolved byturning the hand wheel .2 with the other hand. The amount of travel of porting a pipe flange, a rotatable supp the hammer back and forth is determined by the position of the pins 10 upon the stationary segment 9, The distance of the operating range of the hammer with respect to stationary parts of the machine is con trolled by the position of the lever 7 with respect to the segment 6.

id hat I claim is:

l. The combination of means for supporting a pipe flange, a rotatablesupply pipe, a bracket on the end of saidrotatable supply pipe provided with a passage therethrough, holder adjustably connectible to said bracket and provided with a passage that connects with the passage. of the bracket at selected positions, the said holder being adjustable across a :face of the bracket which face lies at an angle of about forty-five detool supported by the holder at an angle of approximately one hundred thirty-five degrees'with respect to the axis of the supply pipe, said expanding tool having a passage connecting with the passage of the holder.

2. The combination with means'for supporting a pipe flange, of a supply pipe that rotatable, a bracket provided with a passage carried on the end of the supply pipe, a holder provided with a passage connected with the passage of the bracket, said holder being angularly disposed with respect tothe bracket, and an expanding tool disposed at an angle of approximately one hundred thirtyafive degrees with respect to the supply pipe by reason of the'angular disposition of the holder and the bracket, the said expanding tool being provided with a striking tool having a V-shaped recess on its end.

3. The combination with means for supporting a pipe flange, of a rotatable supply pipe, an angular bracket carried on the end of the same, an angularholder comprising a l -cast1ng, a pipe expandlng tool earned by the if-casting, the said angular bracket and holder having passageways for the operatlng fluid, and the angular bracket being c0nnectible at various points along the "l cast" ing to vary the radial-projection ofthe expanding tool, substantlally as described. 4. The combination with means for supporting a pipe flange, of a rotatable supplypipe, a bracket carried on the end thereof comprising a nipple and an angularly disposed flange, an angular holder comprising a T-casting bored for the passageway of the operating fluid and having a plurality of tap holes, the said angular bracket and T'- casting being connectible at selectable places to vary the radial projection of the holder and a pipe expanding tool fastened to the holder and angularly disposed with respect to the plane of the pipe flange.

5. The combination of means for suprees to the supply pipe, and an expanding pipe, a pipe expanding tool carried on the end of the supply pipe, a sliding cross-head connected with the supply pipe to shift the same but to allow the same to rotate within the cross-head, a lever for operating the cross-head, and adjustable stops for limiting the travel of the cross-head, substantially as described.

6. The combination of means for supporting a pipe flange, a rotatable supply pipe, a pipe expanding tool carried on the end of the supply pipe, a slidable cross-head connected with the supply pipe to shift the same but to allow rotation thereof, a pivoted lever, linkage connecting the lever and the cross-head, a stationary segment, and pins lixable on the stationary segment at selected places to engage with the lever and control the range of operableness of the expanding tool.

7. The combination of means for supporting a pipe flange, a rotatable pipe, an expanding tool carried on the end of ti e pipe, a sliding cross-head having a connection with the pipe to shift the same but to allow rotation thereof, a pivoted lever, link-- age between the sliding cross-head and the lever, and means for connecting the said lever at different positions with respect to the linkage, for the purpose of changing the position of the operative range of the eX- panding tool, substantially as described.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

8. The combination of means for supporting a pipe flange, a rotatable supply pipe, an expanding tool carried on the end thereof, a sliding cross-head having connection to shift the supply pipe but to allow rotation thereof, a link connected to the cross-head and an arm attached to the opposite end of the link, a shaft properly journaled and fast to the end of the arm, 21 segment provided with a plurality of perforations and also fast to the shaft, a lever row tatably mounted upon said shaft, and means for bolting a lever through any one of the perforations of the segments, siilbstantially as described.

9. The combination of a casting or a of arms provided with alining studs adapted to be projected into the perforations of the flange, a shaft to which the arms are secured, an arm fastened to said shaft and provided with a bifurcated end, and a screw pivoted to the casting or frame, and adapted to be swung into the bifurcated end and turned to tighten the arm against the cash ing, substantially as described.

In testimony whereof, I sign this specitication in the presence of two witnesses.

JOHN I. PILSTON. Vitnesses:

STUART C. BARNES, MARIETTA F. RUDD.

Washington, I). G. 

